Abstract

We present an optical correlator implementation of the morphological hit–miss transform. This provides improved recognition of objects in clutter compared with standard optical pattern-recognition correlator techniques. The hit–miss transform is modified to use rank-order filtering since this gives better performance in noise and clutter. By varying the correlation plane threshold, we can perform dilations, rank-order filters, and erosions on the same multifunctional coherent optical correlator system. We quantify the thresholds required for generic object part recognition and provide simulated and optical laboratory data.

© 1992 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Nonlinear optical hit–miss transform for detection

Roland Schaefer and David Casasent
Appl. Opt. 34(20) 3869-3882 (1995)

One-step implementation of the optical hit–miss transform

Shifu Yuan, Minxian Wu, Yingbai Yan, and Guofan Jin
Appl. Opt. 35(35) 6881-6887 (1996)

Optically computing the hit–miss transform for an automated cervical smear screening system

John L. Metz and Kristina M. Johnson
Appl. Opt. 39(5) 803-813 (2000)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (16)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription